We had a great stay at Effie's place. Conveniently located above a Tapas Bar with great snacks and drinks. Very close to the Grand Palace and Wat Pho, and a short drive to Taling Chan Floating Market which was definitely the hilight of our stay. Effie was very easy to communicate with, provided us with thorough directions to get to her place from the airport, and was quick to respond any time we had a question.
The only note I would give other travellers is that the beds are very firm, if that's something you care about.
Enjoyed our stay!